Issued share capital, share premium account and share options (Details) - EUR (€) € / shares in Units, € in Millions |
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2024 |
|---|---|---|---|
| Disclosure of classes of share capital [line items] | |||
| Authorized capital | € 10.7 | € 10.7 | € 10.7 |
| Issued capital | 6.3 | 6.4 | 6.9 |
| Ordinary shares | |||
| Disclosure of classes of share capital [line items] | |||
| Authorized capital | € 9.3 | € 9.3 | € 9.3 |
| Number of shares authorized | 1,550,000,000 | ||
| Par value | € 0.6 | € 0.6 | € 0.6 |
| Number of shares outstanding | 1,043,931,708 | 1,063,868,001 | 1,140,045,528 |
| Issued capital | € 6.3 | € 6.4 | € 6.9 |
| Class B share | |||
| Disclosure of classes of share capital [line items] | |||
| Authorized capital | € 0.7 | 0.7 | 0.7 |
| Number of shares authorized | 1,368,000,000 | ||
| Par value | € 0.05 | ||
| Deferred Share | |||
| Disclosure of classes of share capital [line items] | |||
| Authorized capital | € 0.7 | € 0.7 | € 0.7 |
| Number of shares authorized | 1,368,000,000 | ||
| Par value | € 0.05 |